The effect of focusing on the parametric interaction of Gaussian sound beams

Autor: V. O. Mishchenko
Rok vydání: 1999
Předmět:
Zdroj: Journal of Mathematical Sciences. 96:2868-2872
ISSN: 1573-8795
1072-3374
DOI: 10.1007/bf02168997
Popis: Using the method of quasi-optical approximation we study the parametric interaction of Gaussian sound beams with wave fronts having different radii of curvature on the boundary. We give a numerical and analytic analysis of the behavior of the amplitudes of a wave at the difference frequency in the cases when: 1) the focal length of one of the primary waves varies and the other is fixed (large or small in comparison with the length of the diffraction zone); 2) the focal lengths of both primary high-frequency waves are equal in absolute value.
Databáze: OpenAIRE